#test case 1
./Grades 40 60
# expected Component Fail
# Observed Pass

#test case 2
./Grades 60 40
# expected Component Fail
# Observed Fail

#test case 3
./Grades 20 20
# expected Fail
# Observed Fail

#test case 4
./Grades 80 100
# expected Pass with distinction
# Observed Pass with distinction

#test case 5
./Grades 70 70
# expected Pass
# Observed Pass

#test case 6
./Grades 101 60
# expected invalid
# Observed Pass

#test case 7
./Grades 60 101
# expected invalid
# Observed Pass with distinction
